I wonder if your Birchalls are connected to mine.I have a Jane Birchall who married Edward Parry <1808. One of their daughters' names was Mary Ellen, born Feb. 06,1811 and baptized March 25,1811 in St Peter's Church.They had 3 other children that I know of, possibly more. They lived in Liverpool on Gradwell and Roscoe Streets between 1811 and 1818. As you can see there are a few common denominators that exist here. Please get back to me.